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N76 [4]
3 years ago
9

How many triangles can be constructed with three angles, each measuring 63°?

Mathematics
2 answers:
FrozenT [24]3 years ago
6 0

Answer:

None

Step-by-step explanation:

i just took the test

S_A_V [24]3 years ago
5 0

Answer:

None

Step-by-step explanation:

I took the test and I got it correct

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Use the rule y=4 -2x to work out if x =0 what does y =
zheka24 [161]
If we look at our values for X and Y in the example problem, we see that we have -2 and 8. If X is -2, then 8 is 10 digits larger than -2. So, if X is 0, Y is 10.
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Divide the combinations.<br><br> 60C3 / 15C3
Mariulka [41]
I hope you know what '!' means
2!=2
3!=6
4!=24
basicalkly times every natural number including and before that number


nCr=\frac{n!}{r!(n-r)!}
so
\frac{60C3}{15C3}=
\frac{ \frac{60!}{3!(60-3)!} }{ \frac{15!}{3!(15-3)!} }=
( \frac{60!}{3!(60-3)!})(\frac{3!(15-3)!}{15!})=
( \frac{60!}{3!(57)!})(\frac{3!(12)!}{15!})=
\frac{(60!)(3!)(12!)}{(3!)(57!)(15!)}=
\frac{(60!)(12!)}{(57!)(15!)}=
\frac{(60!)}{(57!)(15)(14)(13)}=
\frac{(60)(59)(58)}{(15)(14)(13)}=
\frac{(30)(59)(58)}{(15)(7)(13)}=
\frac{(6)(59)(58)}{(3)(7)(13)}=
\frac{6844}{91}
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4 years ago
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Solve the following inequality:
Advocard [28]

Answer:

The answer is a>-3

Step-by-step explanation:

option no. C

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8 0
4 years ago
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**60 POINTS** How to solve step-by-step...:
Katen [24]
<span>sqrt(3x+7)=x-1 </span>One solution was found :                  <span>      x = 6
</span>Radical Equation entered :

<span>     √3x+7 = x-1

</span>

Step by step solution :<span>Step  1  :</span>Isolate the square root on the left hand side :

     Radical already isolated 
<span>     √3x+7 = x-1

</span>

<span>Step  2  :</span>Eliminate the radical on the left hand side :

     Raise both sides to the second power
<span>     (√3x+7)2 = (x-1)2

</span>     After squaring 
<span>     3x+7 = x2-2x+1

</span>

<span>Step  3  :</span>Solve the quadratic equation :

     Rearranged equation
<span>     x2  - 5x  -6 = 0
</span>
     This equation has two rational roots:
     <span>  {x1, x2}={6, -1}
 </span>

<span>Step  4  :</span>Check that the first solution is correct :

     Original equation
<span>     √3x+7 = x-1

</span>     Plug in 6 for  x 
<span>      √3•(6)+7 = (6)-1

</span>      Simplify
     <span> √25 = 5
 </span>     Solution checks !!
     Solution is: 
<span>      x = 6
</span>

<span>Step  5  :</span>Check that the second solution is correct :

     Original equation
<span>     √3x+7 = x-1

</span>     Plug in  -1 for  x 
<span>      √3•(-1)+7 = (-1)-1

</span>      Simplify
     <span> √4 = -2
 </span>     Solution does not check 
      2 ≠ -2 

One solution was found :                  <span>      x = 6</span>
7 0
3 years ago
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Given: circle k(O), mAM=125°, mEF=31°, m∠MAF=75° Find: m∠AME
myrzilka [38]

Answer:

The measure of angle A.M.E is 58\°

Step-by-step explanation:

step 1

Find the measure of arc M.E

we know that

The inscribed angle is half that of the arc it comprises.

m

we have

m

arc\ E.F=31\°

substitute the values

75\°=\frac{1}{2}(arc\ M.E+31\°)

150\°=(arc\ M.E+31\°)

arc\ M.E=150\°-31\°=119\°

step 2

Find the measure of arc A.F

we know that

arc\ M.E+arc\ E.F+arc\ A.F+arc\ A.M=360\° -----> by complete circle

substitute the values

119\°+31\°+arc\ A.F+125\°=360\°

119\°+31\°+arc\ A.F+125\°=360\°-275\°=85\°

step 3

Find the measure of angle A.M.E

we know that

The inscribed angle is half that of the arc it comprises.

m

substitute the values

m

5 0
3 years ago
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